Last week, travel consumer advocate Christopher Elliott listed four secrets about rule 240—that borderline mythic rule that describes how an airline will behave regarding a canceled or delayed flight—that he says are too often overlooked by travel experts and regular folk:”It’s hardly an all-powerful provision that can be invoked by every stranded passenger. Somewhere between myth and a magic bullet lies the truth about Rule 240.”

Last December, Theodore Karantsalis received a letter from Sprint, where he was a customer, telling him that someone who banks with Wells-Fargo—where he’s not a customer—was presented with his invoice and personal data when they logged into their Wells-Fargo Checkfree account. The customer contacted Sprint, and Sprint contacted Karantsalis. Karantsalis decided that he’d deal with the issue on his own instead of bringing a lawyer into it or throwing his hands up in frustration, so he took both companies to small claims court.

Stores are violating their contract with the credit card companies if they set minimum or maximum charges, or force you to show ID in addition to your credit card (with the obvious exception being for age-limited purchases). Depending on your state and your card issuer, surcharges or “convenience fees” may be banned as well. The best way to straighten these guys out is to report them to the credit card company. People who have done so on the Credit Boards message board say that when they report a merchant, they get a letter from the credit card company and when they go back to the store, the shenanigans have stopped. Here’s all the contact infos for the credit card companies to file a merchant complaint, as well as links to merchant agreements, in case you feel like standing up for your consumer rights. Someone better warn Amy’s Ice Cream!

Did you know it’s illegal for a doctor to charge you for giving you your contact lens prescription? Yup, it’s against federal law. The Fairness to Contact Lens Consumers Act mandates that a doctors must provide you with a copy of your prescription after a contact lens fitting.